2-Nitroanisole → 7-methoxy-2-methyl-1H-indole

HRID 18504

반응식

HRID 18504 반응식
[C:1]([Mg]Br)([CH3:3])=[CH2:2].[CH3:6][O:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=1[N+:14]([O-])=O.[NH4+].[Cl-]>C1COCC1>[CH3:6][O:7][C:8]1[CH:13]=[CH:12][CH:11]=[C:10]2[C:9]=1[NH:14][C:1]([CH3:3])=[CH:2]2

참가 물질

5

반응물 3

HCID 70482-NitroanisoleHCID 25517Ammonium ChlorideHCID 178456138HCID 178456138, 화합물

생성물 1

HCID 3266147-methoxy-2-methyl-1H-indole

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

800 ml of a 0.5M solution of isopropenylmagnesium bromide in THF is cooled to −40° C. under a nitrogen atmosphere, a solution of 20.4 g of 2-methoxynitrobenzene in 125 ml of THF is then added dropwise and the mixture is left stirring for 1 hour while allowing the temperature to return to 0° C. The reaction mixture is poured into a saturated NH4Cl solution and extracted with ether, the organic phase is washed with a saturated NaCl solution and dried over MgSO4, and the solvent is evaporated under vacuum. The residue is chromatographed on silica gel, elution being carried out with cyclohexane and then with a cyclohexane/EtOAc mixture (90/10; v/v). 2.45 g of the expected compound are obtained in the form of an oil.

후처리

  1. waitthe mixture is left
  2. customto return to 0° C
  3. extractionextracted with ether
  4. washthe organic phase is washed with a saturated NaCl solution
  5. dry with materialdried over MgSO4
  6. customthe solvent is evaporated under vacuum
  7. customThe residue is chromatographed on silica gel, elution

출처 및 근거

ORD 기록
ord-0c8cf4b31c33475abf246acdc409da3c
출처 데이터셋
uspto-grants-2010_06
특허 번호
US07741363B2

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